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Table 2: Number and percentage of AVMs detected on ASL and conventional MR imaging, with κ coefficient for interreader reliability
Sequence Total Number of AVMs Detected % of AVMs Detected (n = 57) Interreader Agreement (Cohen κ Coefficient)^{^a}
MR imaging with ASL 51 89.5% 0.801
Conventional MR imaging without ASL 43 75.4% 0.704
P value .046 
↵a Strength of agreement based on Cohen κ coefficient score: none to slight κ < 0.20, fair κ = 0.21–0.40, moderate κ = 0.41–0.60, substantial κ = 0.61–0.80, near perfect κ = 0.81–0.99. P-value derived from McNemar's test.

Sequence	Total Number of AVMs Detected	% of AVMs Detected (n = 57)	Interreader Agreement (Cohen κ Coefficient)^{^a}
MR imaging with ASL	51	89.5%	0.801
Conventional MR imaging without ASL	43	75.4%	0.704
		P value .046